Director of Cricket Steve Rhodes said: "All four of these youngsters have played their part for the first XI during a difficult season, we do expect them to kick-on and improve as players as their careers progress."

"Russell had an exceptional game against South Africa and we want him to show the same level of excellence going forward.

"The other three are products of our outstanding Academy set-up and have shown huge potential under the watchful eyes of Academy Director, Damian D'Oliveira."